EP2167254B1 - Method for the production of a hub in a pressing process by means of at least one rotatable pressing roll - Google Patents

Method for the production of a hub in a pressing process by means of at least one rotatable pressing roll Download PDF

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Publication number
EP2167254B1
EP2167254B1 EP08749780.6A EP08749780A EP2167254B1 EP 2167254 B1 EP2167254 B1 EP 2167254B1 EP 08749780 A EP08749780 A EP 08749780A EP 2167254 B1 EP2167254 B1 EP 2167254B1
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EP
European Patent Office
Prior art keywords
mould
hub
circular
metal blank
hub section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08749780.6A
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German (de)
French (fr)
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EP2167254A2 (en
Inventor
Udo Friese
Heiko Ohlscher
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WF Maschinenbau und Blechformtecknik GmbH and Co KG
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WF Maschinenbau und Blechformtecknik GmbH and Co KG
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Application filed by WF Maschinenbau und Blechformtecknik GmbH and Co KG filed Critical WF Maschinenbau und Blechformtecknik GmbH and Co KG
Publication of EP2167254A2 publication Critical patent/EP2167254A2/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/261—Making other particular articles wheels or the like pulleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
    • F16D1/072—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation

Definitions

  • a rotationally symmetrical transmission part (see FIG Fig. 2 ) is provided with a hub 12 which consists inside of the molded part 7 and the outside of a rolled-hub portion 13 of the rolled material of the metal blank 1.

Description

Die Erfindung betrifft ein Verfahren nach dem Oberbegriff des Anspruchs 1 und ein nach diesem Verfahren hergestelltes Bauteil.The invention relates to a method according to the preamble of claim 1 and a component produced by this method.

Das grundlegende Verfahren zur Herstellung einer Nabe im Drückverfahren mittels wenigstens einer drehbaren Drückrolle ist in der EP 0 725 693 B1 patentiert. Dieses Verfahren findet seine Weiterentwicklung in der DE 44 44 526 C1 , nach deren Lehre lediglich die äußere Umfangskante der Blechplatine während des Drückverfahrens dadurch abgestützt wird, dass sich ein Widerlagerfutter abstützend gegen die Unfangskante der Metallronde anlegt.The basic method for producing a hub in the pressing method by means of at least one rotatable spinning roller is in the EP 0 725 693 B1 patented. This procedure finds its advancement in the DE 44 44 526 C1 , according to the teaching, only the outer peripheral edge of the sheet metal blank during the pressing process is supported by the fact that an abutment lining abuts supporting against the peripheral edge of the metal blank.

Aus der US 5,951,44 ist es ferner bekannt, bei Naben von Riemenscheiben dadurch ein Stufenloch bzw. ein so genanntes "blind hole" auszubilden, dass ein gestufter Vorsetzer eine Durchgangsbohrung derart durchsetzt, dass eine Kante/Ringfläche des Vorsetzers, der am Außenumfang der im Widerlagerfutter gehaltenen Metallronde, auf der Metallronde aufliegt und der die Durchgangsbohrung der Metallronde durchsetzende Abschnitt des Vorsetzers einen Innendurchmesser aufweist, welcher dem der Metallronde entspricht. Hierdurch bleibt beim Ausbilden der Nabe ein innerer Steg an der Nabe stehen, so dass sich das Stufenloch ausbildet, welches in manchen Anwendungsfällen entweder konstruktiv notwendig ist oder aber abgedreht werden kann, beispielsweise, um den Kanten der Innenkontur eine besondere Form zu geben. Die Stufenlochgeometrie der Nabe nach dem Drücken entspricht stets der Dicke der Metallronde in diesem Bereich vor dem Ausformen der Nabe.From the US 5,951.44 It is also known, thereby forming a hub hole or a so-called "blind hole" in hub of pulleys, that a stepped Vorsetzer passes through a through hole such that an edge / annular surface of the Vorsetzers, on the outer circumference held in the abutment chuck metal blank on the metal blank rests and the through hole of the metal blank penetrating portion of the presetter has an inner diameter which corresponds to that of the metal blank. As a result, when forming the hub, an inner web remains on the hub, so that the stepped hole is formed, which in some applications either structurally necessary or can be turned off, for example, to give the edges of the inner contour a special shape. The tap hole geometry of the hub after pressing always corresponds to the thickness of the metal blank in this area prior to forming the hub.

Nach der gattungsbildenden EP 1 263 539 B1 wird am Innenumfang der Nabe ein sich von der Nabe im wesentlichen nach innen erstreckender Materialsteg dadurch ausgebildet, dass beim Ausformen der Nabe zumindest ein Abschnitt eines Vorsetzers beabstandet zur Metallronde angeordnet wird, so dass beim Ausbilden der Nabe Material der Metallronde in den Bereich zwischen der Metallronde und dem Vorsetzer fließt und derart das Stufenloch formt.After the generic EP 1 263 539 B1 On the inner periphery of the hub, a material web extending substantially inwardly from the hub is formed by locating at least a portion of a presetter spaced apart from the metal blank during formation of the hub such that material of the metal blank extends into the region between the metal blank when the hub is formed and flows to the preparer, thus forming the step hole.

Ausgehend von diesem Stand der Technik ist es die Aufgabe der Erfindung, das gattungsgemäße Verfahren derart weiterzuentwickeln, dass ihm neue Anwendungsmöglichkeiten erschlossen werden.Based on this prior art, it is the object of the invention to further develop the generic method such that it opens up new applications.

Die Erfindung erreicht dieses Ziel durch den Gegenstand des Anspruchs 1.The invention achieves this goal by the subject matter of claim 1.

Derart wird es auf einfache Weise möglich, Getriebeteil zu realisieren, deren Nabe aus einem inneren Formteil und einem äußeren angerollten Nabenabschnitt besteht. Das Formteil kann aus einem anderen Material - so aus einem härteren Material - als die Blechplatine bestehen, aus welcher der äußere Nabenabschnitt gedrückt wird. Zudem sind hinsichtlich der axialen Länge der Nabe keine Grenzen gesetzt, da das Formteil ggf. sogar als Abschnitt eines Rohres ausgebildet sein und eine sehr große axiale Länge aufweise kann.In this way it is possible in a simple manner to realize a gear part whose hub consists of an inner molded part and an outer rolled hub section. The molding may be made of a different material - such as a harder material - than the sheet metal blank from which the outer hub portion is pressed. In addition, there are no limits with regard to the axial length of the hub, since the molded part may even be formed as a section of a tube and may have a very large axial length.

Vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous embodiments of the invention can be found in the dependent claims.

Nachfolgend wird die Erfindung unter Bezug auf die Zeichnung anhand von Ausführungsbeispielen näher beschrieben. Es zeigen:

Fig. 1a -c
drei schematisch und schnittartig dargestellte, aufeinander folgende Bearbeitungsphasen bei der Herstellung eines Getriebeteils nach einem ersten Ausführungsbeispiel eines erfindungsgemäßen Verfahrens zur Herstellung einer Nabe;
Fig. 2
eine Ausschnittsvergrößerung aus Fig. 1; d;
Fig. 3-17
teilgeschnittene Darstellungen weiterer Ausführungsbeispiele von nach dem erfindungsgemäßen Verfahren hergestellten Bauteilen.
The invention will be described in more detail below with reference to the drawing with reference to exemplary embodiments. Show it:
Fig. 1a-c
three schematically and in section, successive processing phases in the manufacture of a transmission part according to a first embodiment of a method for producing a hub according to the invention;
Fig. 2
an excerpt from Fig. 1 ; d;
Fig. 3-17
partly sectional representations of further embodiments of components produced by the method according to the invention.

In den Fig. 1 bis 3 liegt eine scheibenartige Metallronde (Blechplatine) 1 mit einer Durchgangsöffnung 2 auf einem um eine Drehachse z drehbaren Werkzeug 3 auf.In the Fig. 1 to 3 is a disc-like metal blank (sheet metal blank) 1 with a through hole 2 on a rotatable about a rotation axis z tool 3.

Die Durchgangsöffnung 2 durchsetzt ein hier gestuft ausgebildeter Vorsetzer 4 (Stufung 5), dessen die Durchgangsöffnung 2 durchsetzendes Vorsetzerende 6 auf dem Werkzeug 3 aufliegt.The passage opening 2 passes through a here formulated trained presetter 4 (step 5), the through-opening 2 passing through the presetter end 6 rests on the tool 3.

Auf der von Werkzeug 3 abgewandten Seite der Metallronde 2 ist auf diese ein einzurollendes Formteil- hier eine Buchse 7 - aufgesetzt, deren Innendurchmesser dem Innendurchmesser der Durchgangsöffnung entspricht. Dieses Formteil kann auch vorab an der Metallronde auf beliebige Art befestigt sein.On the side facing away from the tool 3 side of the metal blank 2 is on this a einzurollendes molding - here a socket 7 - placed, whose inner diameter corresponds to the inner diameter of the passage opening. This molding can also be attached in advance to the metal blank in any way.

Mit der Stufung 5 des Vorsetzers 4 wird das Formteil 7 auf der Metallronde 2 festgelegt.With the grading 5 of the presetter 4, the molding 7 is set on the metal blank 2.

Sodann wird - vorzugsweise ohne Wärmezufuhr mittels Kaltverformung - im Drückverfahren wenigstens eine drehbare Drückrolle 8 von der dem Werkzeug 3 gegenüber liegenden Seite her axial in die Metallronde 2 eingetaucht und dann vorzugsweise radial nach innen zur Drehachse z hin zugestellt.Then - preferably without heat by cold deformation - in the pressing process at least one rotatable spinning roller 8 of the tool 3 opposite side axially dipped into the metal blank 2 and then preferably radially inwardly towards the axis of rotation z out.

Hierdurch wird zunächst die Metallronde 1 etwas radial aufgeweitet, so dass Material von innen gegen einen widerlagerartigen Ringabschnitt 9 am Werkzeug 3 fließt. Beim weiteren radialen Zustellen der Drückrolle 8 nach innen staut sich vor der Drückrolle 8 Rondenmaterial 10 auf, das mit fortschreitendes Bewegung der Drückrolle 8 schließlich radial nach innen gegen das Formteil 7 gedrückt wird, an dem es axial bis zu einem gestuften Absatz 11 an der Drückrolle 8 läuft, wobei der Absatz 11 derart angeordnet ist, dass auch Rondenmaterial zwischen den Raum zwischen dem Absatz 11 und das von der Metallronde abgewandt liegenden Ende des Formteils 7 fließt, so dass das Formteil 7 auf einfache Weise (siehe auch Fig. 3) axial in beiden axialen Richtungen an der nunmehr umgeformten Metallronde 1 mit dem Nabenabschnitt 13 gesichert ist. Die Metallronde kann in ihrem übrigen Bereich beliebig weiter bearbeitet werden, so zu einer Riemenscheibe und/oder zu einem sonstigen beliebigen Getriebeteil.As a result, first the metal blank 1 is widened somewhat radially, so that material flows from the inside against a abutment-like ring section 9 on the tool 3. Upon further radial infeed of the pressure roller 8 inwards, in front of the spinning roller 8, blank material 10 accumulates which, as the pressure roller 8 advances, is finally pressed radially inwardly against the molding 7, axially up to a stepped shoulder 11 on the spinning roller 8 runs, wherein the paragraph 11 is arranged such that also sheet material between the space between the paragraph 11 and the end remote from the metal blank end of the molding 7 flows, so that the molding 7 in a simple manner (see also Fig. 3 ) is axially secured in both axial directions on the now deformed metal blank 1 with the hub portion 13. The metal blank can be further processed in its remaining range as desired, so to a pulley and / or to any other gear part.

Derart wird auf einfache Weise ein rotationssymmetrisches Getriebeteil (Siehe Fig. 2) mit einer Nabe 12 geschaffen, die innen aus dem Formteil 7 und außen aus einem angerolltem Nabenabschnitt 13 aus dem angerollten Material der Metallronde 1 besteht.In this way, a rotationally symmetrical transmission part (see FIG Fig. 2 ) is provided with a hub 12 which consists inside of the molded part 7 and the outside of a rolled-hub portion 13 of the rolled material of the metal blank 1.

Da das Formteil 7 aus einem anderen Material als dem Rondenmaterial bestehen kann, so aus einem relativ zum Rondematerial härteren Material, wird ein Getriebeteil geschaffen, dessen Nabe auch aus einem Material wie einem Hartmetall oder einer Keramik bestehen kann, welches nicht im Drückverfahren mit einer Drückrolle umformbar ist.Since the molded part 7 can consist of a material other than the blank material, so from a relatively harder material for the material, a gear member is provided, the hub may also consist of a material such as a hard metal or a ceramic, which is not in the pressing method with a spinning roller is deformable.

Das Formteil 7 ist nach Fig. 3 als Buchse ausgebildet, welche an ihrem Innenumfang und an ihrem Außenumfang zylindrisch ausgebildet ist.The molding 7 is after Fig. 3 formed as a bush which is cylindrical on its inner circumference and on its outer periphery.

Der Begriff der Nabe ist nicht zu eng zu fassen. Insbesondere kann das Formteil auch länger sein als der angeformte äußere Nabenabschnitt.The concept of the hub is not too narrow. In particular, the molding may also be longer than the molded outer hub portion.

Nach Fig. 1 bis 9 ist das Formteil 7 so bemessen, dass es vor dem Einrollen mit einem seiner Enden auf der Metallronde 1 aufliegt. Axial ist das Formteil 7 kürzer als das der angerollte Nabenabschnitt 13 bzw. dass angerollte Nabenmaterial.To Fig. 1 to 9 the molding 7 is dimensioned such that it rests on the metal blank 1 with one of its ends before curling. Axially, the molded part 7 is shorter than that of the rolled hub portion 13 or that rolled hub material.

Auch nach Fig. 10 bis 13 ist das Formteil so bemessen, dass es vor dem Einrollen mit einem seiner Enden auf der Metallronde 1 aufliegt. Das Formteil 7 ist hier aber länger als der an seinen Außenumfang angerollte Nabenabschnitt 13, so dass es axial über das Ende des Nabenabschnittes 13 vorsteht. Dies ermöglicht auf einfache Weise das Fertigen von Getriebeteilen mit sehr langen axialen Naben.Also after Fig. 10 to 13 the molding is dimensioned so that it rests with one of its ends on the metal blank 1 before curling. However, the molded part 7 is longer here than the hub section 13 rolled onto its outer circumference, so that it projects axially beyond the end of the hub section 13. This makes it easy to manufacture gear parts with very long axial hubs.

Nach Fig. 14 bis 17 ist das Formteil 7 als rohrartiger Abschnitt ausgestaltet, welches bereits vor dem Anrollen der Nabe die Metallronde 1 vollständig durchsetzt. Hier ist die Durchgangsbohrung der Metallronde 1 entsprechend zu bemessen und das Werkzeug 3 ist mit einem Aufnahmebereich für den rohrartigen Abschnitt zu versehen.To FIGS. 14 to 17 the molded part 7 is designed as a tube-like section, which already completely penetrates the metal blank 1 before the hub is rolled up. Here, the through hole of the metal blank 1 is to be sized accordingly and the tool 3 is provided with a receiving area for the tubular portion.

Es ist denkbar, das Formteil 7 mit einer Konturierung zu versehen, in welche beim Andrücken des äußeren Nabenabschnittes 3 Material der Metallronde 1 fließt, welche das Formteil 7 zusätzlich axial und/oder in Umfangsrichtung an der Metallronde 1 sichert.It is conceivable to provide the shaped part 7 with a contouring into which material of the metal blank 1 flows when the outer hub portion 3 is pressed, which additionally secures the shaped part 7 axially and / or circumferentially to the metal blank 1.

Die Konturierung weist nach Fig. 1, 2, 5, 7, 11, 14 und 15 Ringnuten 16 im Außenmantel des Formteils 7 auf, was eine zusätzliche axiale Sicherung der Formteils 7 an dem angerollten Nabenabschnitt 13 bedeutet.The contouring follows Fig. 1 . 2 . 5 . 7 . 11 . 14 and 15 Ring grooves 16 in the outer jacket of the molding 7, which means an additional axial securing of the molding 7 to the rolled hub portion 13.

Nach Fig. 7, 11 und 15 weist die Konturierung die Ringnuten 16 und ergänzend axiale verlaufende Nuten 17 im Außenmantel des Formteils 7 auf, was eine zusätzliche Verdrehsicherung der Formteile 7 an den jeweils an sie angerollten Nabenabschnitten 13 realisiert.To Fig. 7 . 11 and 15 has the contour of the annular grooves 16 and complementary axial grooves 17 in the outer shell of the molding 7, which realizes an additional anti-rotation of the mold parts 7 to each rolled into it hub portions 13.

Nach Fig. 6, 8, 12 und 16 weist die Konturierung Aussparungen 18 oder Bohrungen, insbesondere Sacklöcher 19 im Außenmantel des Formteils 7 auf, in welche der angerollte Nabenabschnitt 13 jeweils mit Material eingreift, was eine zusätzliche axiale Sicherung und eine Verdrehsicherung des Formteils 7 an dem angerollten Nabenabschnitt 13 bedeutet.To Fig. 6 . 8th . 12 and 16 the contouring recesses 18 or holes, in particular blind holes 19 in the outer shell of the molding 7, in which the rolled hub portion 13 each engages with material, which means an additional axial securing and rotation of the molded part 7 on the rolled hub portion 13.

Das Formteil 7 kann an seinem Außenumfang auch mit einer Außenverzahnung 14 versehen werden, die es axial und gegen Verdrehungen sichert (Fig. 9, 13, 17).The molding 7 may be provided on its outer periphery with an external toothing 14, which secures it axially and against rotation ( Fig. 9 . 13 . 17 ).

Optional kann das Formteil 7 auch mit einer Innenverzahnung 15 versehen werden, so dass ein innenverzahntes Getriebeteil geschaffen wird.Optionally, the molded part 7 can also be provided with an internal toothing 15, so that an internally toothed gear part is created.

Es ist auch denkbar, ein mit einer Innenverzahnung 15 und einer Außenverzahnung 14 versehenes Formteil in die Nabe einzurollen (Fig. 9).It is also conceivable to roll a shaped part provided with an internal toothing 15 and an external toothing 14 into the hub ( Fig. 9 ).

Das Verfahren zu Herstellung der Nabe mit Formteil ist in den Fig. 1 bis 14 im Wesentlichen gleich.The method of manufacturing the hub with molded part is in the Fig. 1 to 14 essentially the same.

Bezugszeichenreference numeral

Metallronde (Blechplatine)Metal blank (sheet metal blank) 11 DurchgangsöffnungThrough opening 22 Drehachseaxis of rotation zz WerkzeugTool 33 VorsetzerVorsetzer 44 Stufunggradation 55 VorsetzerendeVorsetzerende 66 Formteilmolding 77 Drückrollespinning roller 88th Ringring 99 RondenmaterialRonde material 1010 Absatzparagraph 1111 Nabehub 1212 angerollter NabenabschnittRolled hub section 1313 Außenverzahnungexternal teeth 1414 Innenverzahnunginternal gearing 1515 Ringnutenring grooves 1616 Nutengroove 1717 Aussparungenrecesses 1818 Sacklöcherblind holes 1919

Claims (15)

  1. A method for the non-cutting production of a component, especially a transmission component, having a hub (12), in which a hub (12) extending substantially radially to the plane of the circular metal blank is formed by means at least one rotating pressing roll (8) from a rotating circular metal blank (1) with a through-opening (2), wherein the pressing roll (8) is advanced radially from the outside to the inside to immerse into the circular metal blank at least temporarily and in sections, characterized in that the circular blank material (10) is pressed from the circular metal blank against a mould (7) in such a way that a hub (12) is formed with the mould (7) as the inner section and with an outer hub section (13) made of material of the circular metal blank (1) that is pressed against the mould (7).
  2. A method according to claim 1, characterized in that the mould (7) is fixed to the circular metal blank (1) by means of a patch block.
  3. A method according to one of the preceding claims, characterized in that the circular blank material (10) accumulates in front of the pressing roll (8) during radial advancement of the press roll (8), which with progressing movement of the pressing roll is pressed radially to the inside as a roller-formed hub section (13) against the mould (7) on which it runs axially up to a stepped shoulder (11) on the pressing roll (8).
  4. A method according to one of the preceding claims, characterized in that the shoulder (11) is arranged in such a way that a portion of the blank circular material (10) flows between the space between the shoulder (11) and the end of the mould (7) situated away from the circular metal blank (1), so that the mould (7) is secured axially in both axial directions on the circular metal blank (1).
  5. A method according to one of the preceding claims, characterized in that the mould (7) consists of a different material than the circular metal blank (1).
  6. A method according to one of the preceding claims, characterized in that the mould (7) consists of a harder material than the circular metal blank (1), and/or that the mould (7) consists of a ceramic material.
  7. A method according to one of the preceding claims, characterized in that the hub (12) is arranged in such a way that the mould (7) protrudes axially beyond the roller-formed hub section (13), and/or that the mould (7) completely penetrates the circular metal blank and the hub section (13) roller-formed thereon.
  8. A method according to one of the preceding claims, characterized in that the hub (12) is arranged in such a way that the mould (7) axially protrudes on both sides beyond the circular metal blank and the hub section (13) that is roller-formed thereon.
  9. A method according to one of the preceding claims, characterized in that the mould (7) is arranged as a bushing, which is cylindrically arranged on its inner circumference and on its outer circumference, and/or that the mould (7) is arranged as a tubular section which is cylindrically arranged on its inner circumference and its outer circumference.
  10. A method according to one of the preceding claims, characterized in that the mould (7) is dimensioned in such a way that prior to rolling up it rests with one of its ends on the circular metal blank (1), and/or that the mould (7) is shorter than the roller-formed hub section (13).
  11. A method according to one of the preceding claims, characterized in that the mould (7) is provided with a contouring in which material of the circular metal blank (1) flows during pressing on of the outer hub section (13), which material additionally secures the mould (7) especially axially and/or in the circumferential direction on the outer hub section (13), and/or that the contouring comprises annular grooves (16) in the outer jacket of the mould (7) into which the circular blank material of the hub section (13) is pressed.
  12. A method according to one of the preceding claims, characterized in that the contouring comprises axial grooves (17) in the outer jacket of the mould (7), into which circular blank material of the hub section (13) is pressed, and/or that the contouring comprises recesses (18) in the outer jacket of the mould (7), into which circular blank material of the hub section (13) is pressed, and/or the contouring comprises boreholes in the outer jacket of the mould (7), into which circular blank material of the hub section (13) is pressed.
  13. A method according to one of the preceding claims, characterized in that the contouring comprises slits in the outer jacket of the mould (7), into which circular blank material of the hub section (13) is pressed, and/or that the contouring comprises pocket holes (19) in the outer jacket of the mould (7), into which circular blank material of the hub section (13) is pressed.
  14. A method according to one of the preceding claims, characterized in that the contouring comprises an outer toothing (14) in the outer jacket of the mould (7), into which circular blank material of the hub section (13) is pressed, and/or that the mould comprises an internal toothing (15).
  15. A transmission part, especially produced according to one of the preceding claims, characterized by a hub (12) with a mould (7) as the inner hub section and an outer hub section (13) which is pressed thereon and is made of circular blank material of a circular metal blank (1).
EP08749780.6A 2007-05-23 2008-04-28 Method for the production of a hub in a pressing process by means of at least one rotatable pressing roll Not-in-force EP2167254B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007023972A DE102007023972A1 (en) 2007-05-23 2007-05-23 Method for producing a hub in the pressing method by means of at least one rotatable spinning roller
PCT/EP2008/055152 WO2008141896A2 (en) 2007-05-23 2008-04-28 Method for the production of a hub in a pressing process by means of at least one rotatable pressing roll

Publications (2)

Publication Number Publication Date
EP2167254A2 EP2167254A2 (en) 2010-03-31
EP2167254B1 true EP2167254B1 (en) 2014-07-16

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EP (1) EP2167254B1 (en)
DE (1) DE102007023972A1 (en)
ES (1) ES2515166T3 (en)
WO (1) WO2008141896A2 (en)

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DE102014116786A1 (en) * 2014-11-17 2016-05-19 Thyssenkrupp Steel Europe Ag Process for producing a rotationally symmetrical shaped body
DE102015113869A1 (en) * 2015-08-20 2017-02-23 Thyssenkrupp Ag Method for producing a molded part and molded part
CN107159768A (en) * 2017-07-13 2017-09-15 芜湖西诺普汽车零部件科技有限公司 A kind of nut board machining process and shovel rotation mould
CN109158469B (en) * 2018-08-03 2020-05-19 华中科技大学 Progressive thickening forming method for annular boss of annular plate

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US595144A (en) 1897-12-07 Hose-bridge
ES2107817T3 (en) 1993-12-09 1997-12-01 Wf Maschinenbau Blechformtech PROCEDURE FOR THE MANUFACTURE WITHOUT CHIP STARTING OF A CUBE OF A GEAR PIECE THAT HAS A CUBE.
DE4444526C1 (en) 1994-11-30 1995-11-30 Wf Maschinenbau Blechformtech Device for non=cutting manufacturing of gearing boss from metal plate
US5947853A (en) * 1996-08-15 1999-09-07 The Gates Corporation Spun pulley with thick hub
JP2000153312A (en) * 1998-11-16 2000-06-06 Nissan Motor Co Ltd Method for forming boss part on planar work
DE29906427U1 (en) * 1999-02-16 1999-06-02 Wf Maschinenbau Blechformtech Device for manufacturing a hub
JP3787092B2 (en) 2000-02-15 2006-06-21 ヴェーエフ−マシーネンバウ ウント ブレッヒフォルムテヒニック ゲーエムベーハー ウント ツェーオー コマンディットゲゼルシャフト Non-cutting manufacturing method of member having hub

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ES2515166T3 (en) 2014-10-29
EP2167254A2 (en) 2010-03-31
WO2008141896A3 (en) 2009-01-22
DE102007023972A1 (en) 2008-11-27
WO2008141896A2 (en) 2008-11-27

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